Quadratic Test 3A Review

Question 1

What transformation is needed to obtain g(x)= -(x+2)2-1 from f(x)= (x+2)2+4

Accepted Answer

Reflect over x-axis and shift down 5

Question 2

If you are asked to find when a ball will reach its maximum height what should you find?

Accepted Answer

The y value of the vertex

Question 3

What is the axis of symmetry?

Accepted Answer

x=4

Question 4

What are the zeros of the function h = -5t2 + 20

Accepted Answer

t= 2, t= -2

Question 5

The following graph models a diver jumping into the water. What is the divers maximum height?

Accepted Answer

7 feet

Question 6

Find the Axis of Symmetry for the function y= -2x2- 8x + 3

Accepted Answer

x= -2

Question 7

What is the range of the following graph?

Accepted Answer

2 to infinity

Question 8

What are the x-intercepts of the function y= -x2+6x

Accepted Answer

(0,0) and (6,0)

Question 9

Write the equation of this graph in vertex form.

Accepted Answer

y = -2(x-1)2+7

Question 10

Find Vertex Form of the function y= -2x2- 8x + 3

Accepted Answer

y= -2(x+2)2+11

Question 11

Which is a zero of the function y= x2-3x-10

Accepted Answer

(5, 0)

Question 12

What is the interval of increase for the following graph?

Accepted Answer

5 to infinity

Question 13

If y= -x2+ 10x + 6 models a divers height in feet, what was the divers initial height?

Accepted Answer

6 feet

Question 14

This models a rocket being launched, what is the interval of increase on the practical domain?

Accepted Answer

0 to 4

Question 15

Does the function y= -2x2- 8x + 3 open up or down?

Accepted Answer

Down

Question 16

What is the axis of symmetry?

Accepted Answer

x=1

Question 17

What is the correct equation for this graph in vertex form?

Accepted Answer

y = -(x-2)2+1

Question 18

The vertex of f(x)= -2x2-4x+9 is a...

Accepted Answer

maximum

Question 19

What is the vertex of the function y= (x+5)2-2

Accepted Answer

(-5, -2)

Question 20

If this graph models a rocket being launched, what is the practical domain?

Accepted Answer

0 to 8

Question 21

What is the equation of the following graph?

Accepted Answer

y=x2+2

Question 22

What is f(x)= x2+4x-5 in intercept form?

Accepted Answer

f(x) = (x+5)(x-1)

Question 23

What is the interval of decrease of the following graph?

Accepted Answer

1 to infinity

Question 24

The graph represents a ball being tossed. How long does it take to reach its max height?

Accepted Answer

1 sec

Question 25

What is the y-intercept of f(x)= x2+4x-5?

Accepted Answer

(0,-5)

Question 26

How does the function f(x)= -1/2x2 relate to the parent function?

Accepted Answer

Wider by a factor of 2 and flipped over the x-axis

Question 27

If this graph models a rocket being launched, what is the practical range?

Accepted Answer

0 to 16

Question 28

Which function has a higher initial height than the graph shown?

Accepted Answer

y= -x2+20

Question 29

What is f(x) = x2 + 4x - 5 in vertex form?

Accepted Answer

f(x) = (x+2)2-9

Question 30

What is the equation of the following graph in intercept form?

Accepted Answer

y = -1/2(x+1)(x-3)

Question 31

What is the range of the following graph?

Accepted Answer

negative infinity to 2

Question 32

This models a rocket being launched, what is the interval of decrease on the practical domain?

Accepted Answer

4 to 8

Question 33

If you are asked to find when a diver will hit the water what are you being asked to find?

Accepted Answer

x-intercept

Question 34

Describe the transformation needed to obtain f(x)=3x2-1 from the parent function.

Accepted Answer

narrow by a factor of 3 and shift down 1

Question 35

After how many seconds does the ball hit the ground?

Accepted Answer

2 sec

Quadratic Test 3A Review

Questions 35

Quadratic Test 3A Review

Questions 35